Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 10, 2009
0Patent Application Number
112399330
Date Filed
September 30, 2005
0Patent Primary Examiner
Patent abstract
An oscillator circuit formed at least partially on an integrated circuit substrate includes a self-shielding inductor. The self-shielding inductor has a toroidal structure. A coil forms a structure that is symmetric around an axis orthogonal to a surface of the integrated circuit substrate. A magnetic filed generated by the self-shielding inductor is confined to a core region of the coil. Portions of the self-shielding inductor may be formed in integrated circuit layers, redistribution layers, package layers, through-substrate interconnect, backside substrate conductor layers, or combinations thereof.
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